| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.71 | 3.72 | -0.01 |
| Feb | 3.42 | 3.50 | -0.08 |
| Mar | 3.77 | 3.97 | -0.20 |
| Apr | 2.95 | 3.07 | -0.12 |
| May | 3.32 | 3.33 | -0.01 |
| Jun | 4.48 | 4.40 | 0.08 |
| Jul | 4.53 | 4.53 | 0.00 |
| Aug | 4.67 | 4.66 | 0.01 |
| Sep | 4.09 | 4.09 | 0.00 |
| Oct | 3.31 | 3.46 | -0.15 |
| Nov | 2.95 | 3.05 | -0.10 |
| Dec | 3.81 | 3.91 | -0.10 |
45.01 | 45.69 | -0.68 |